2169042636290 has 8 divisors (see below), whose sum is σ = 3904276745340. Its totient is φ = 867617054512.

The previous prime is 2169042636263. The next prime is 2169042636329. The reversal of 2169042636290 is 926362409612.

It is a Cunningham number, because it is equal to 1472767²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 2169042636289 + 1 = 1472767^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108452131805 + ... + 108452131824.

Almost surely, 2^{2169042636290} is an apocalyptic number.

2169042636290 is a deficient number, since it is larger than the sum of its proper divisors (1735234109050).

2169042636290 is a wasteful number, since it uses less digits than its factorization.

2169042636290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216904263636.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 2169042636290 in words is "two trillion, one hundred sixty-nine billion, forty-two million, six hundred thirty-six thousand, two hundred ninety".